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Nelson KE, Galai N, Safaeian M, Strathdee SA, Celentano DD, Vlahov D.Nelson KE, et al.Am J Epidemiol. 2002 Oct 1;156(7):641-53. doi: 10.1093/aje/kwf086.Am J Epidemiol. 2002.PMID: 12244033
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Farzadegan H, Vlahov D, Solomon L, Muñoz A, Astemborski J, Taylor E, Burnley A, Nelson KE.Farzadegan H, et al. Among authors: nelson ke.J Infect Dis. 1993 Aug;168(2):327-31. doi: 10.1093/infdis/168.2.327.J Infect Dis. 1993.PMID: 8335969